Composting / Biomeilers
Composting is all about _________ to __________ ratios
"carbon" to "nitrogen"
Gaia theory is based upon the idea that ________ and nonliving factors work together to maintain equilibrium(s).
living
Aquaponics involves a _________ relationship between fish and plants.
symbiotic
What are three ways you can "harvest" energy from the sun?
Photo-voltaics, solar heating and cooling and concentrating solar power
ENERGY and POWER are related in that power is the _____ at which energy is used.
rate
What are typical brown to green ratios by VOLUME?
2 to 1 or 3 to 1
Gaia Theory relies on ____back mechanisms that work to achieve a state of ____________, aka equilibrium.
"feed"back, homeostasis
In the hydroponic setups you made, what needed to be added to the water and why?
Nutrient solution with nitrogen and phosphorous to take the role of the nutrients the plant would otherwise get from the soil.
Photo-voltaics converts sunlight into __________.
electricity
The unit of power is a Watt and for energy (on an electric bill) is ___________.
kiloWatt hours
A biomeiler can have both an aerobic and an ____________ reaction happening depending upon how it is set up.
anaerobic
The Gaia Hypothesis was originally proposed by _________________________.
James Lovelock
What is the role of the "wick" in most hydroponic setups though ours didn't need it because the mint roots were so big.
Getting the liquids (water and nutrients) up to the root zone.
Solar heating uses the direct _________ of the sun to heat (and cool) liquids and gases.
energy
An 800 Watt toaster is used for 3 hours at a health food store in Buzzards Bay where electricity costs $.26 per kilowatt hour. How much did it cost in energy consumption to make the toast?
800 Watts / 1000 = .8 kilowatts
.8 kilowatts x 3 hours = 2.4 kilowatt hours
2.4 kilowatt hours x $.26 / kilowatt hour = $.624
Leaves, dry hay, pine needles and sticks / twigs are known as "___________", whereas grass, coffee grounds, food scraps, and animal manures are known as "____________".
"browns", "greens"
Among the factors that are believed to be kept relatively constant by Gaian feedback loops are _______________, _____________ and ________________.
temperature, atmospheric composition, and ocean salinity.
What have been some of our biggest struggles in our aquaponic setup?
Fish getting into other parts of the system. Algae growing in the water from the plant growlights. Keeping the tanks clean.
Concentrating solar power uses ________ to focus light on a common point and heat it up to high temperatures.
mirrors
A cafe uses four 1200 watt ovens about 8 hours a day every day of the year. If the cost of electricity is $.18 per kilowatt hour, how much do the ovens cost the cafe?
1200 watts / 1000 x 4 ovens x 8 hours x 365 days x $.18 / kwhour = $2522.88
Both the aerobic and anaerobic reactions produce green house gases, only one produces _____ energy and the other produces _________, which is a combustible fuel.
heat, methane
Gaian Theory is hard to test due to the lack of an experimental ___________.
control...there is no other Earth-like planet to compare it to!
Aquaponic setups are appealing to folks living self-sustainably because they ___________ and a source of __________.
plants / vegetables, protein
When thinking about the carbon footprint of an "energy harvesting" method, you need to consider how the harvester is ______ as well as used.
made
On your electric bill you have to pay for the generation of the electricity as well as the ___________ of it to the home.
transmission